EP 1302969 B1 20051214 - Sleeve for hot cathode structure and method for manufacturing such sleeve
Title (en)
Sleeve for hot cathode structure and method for manufacturing such sleeve
Title (de)
Hülse für eine beheizte Kathode und Verfahren zu ihrer Herstellung
Title (fr)
Manchon pour cathode chauffée et procédé de fabrication
Publication
Application
Priority
EP 01308682 A 20011011
Abstract (en)
[origin: EP1302969A1] A black rough surface which is uniform and has superior characteristic is obtained through simple steps such that a black coating is formed on the inner surface of a sleeve for a hot cathode structure. The black coating 7 is formed at the inner surface of a sleeve 3 in order to quickly and efficiently transfer heat from a heater 4 to a cathode substrate 1. The black coating 7 is a composite film of tantalum and tungsten, rhenium, or a mixture of tungsten and rhenium. The composition of the black coating is such that the mass ratio (tantalum : tungsten, rhenium, or the mixture of tungsten and rhenium) between tantalum and tungsten, rhenium, or the mixture of tungsten and rhenium is in a range between (80 : 20) and (10 : 90). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
DE FR NL
DOCDB simple family (publication)
EP 1302969 A1 20030416; EP 1302969 B1 20051214; DE 60115904 D1 20060119; DE 60115904 T2 20060614
DOCDB simple family (application)
EP 01308682 A 20011011; DE 60115904 T 20011011